Group Health Insurance Market Size, Share & Industry Analysis, By Type (Health Maintenance Organization (HMO), Preferred Provider Organization (PPO), Exclusive Provider Organization (EPO), and Others), By Product (Contributory Plans and Non-Contributory Plans), By Payor (Private and Public), By Mode (Offline and Online) By Distribution Channel (Direct Sales, Agents, Brokers, Banks, and Others), and Regional Forecast, 2026-2034